FVXX21 KNES 240458 VA ADVISORY DTG: 20230824/0458Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0005 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2023/494 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: VA PSBLY OBSD. OBS VA DTG: 24/0420Z OBS VA CLD: SFC/FL150 N0003 W07754 - S0004 W07739 - S0005 W07740 - S0001 W07756 - N0003 W07754 MOV W 20KT FCST VA CLD +6HR: 24/1030Z SFC/FL150 N0006 W07802 - S0004 W07739 - S0005 W07739 - S0001 W07805 - N0006 W07802 FCST VA CLD +12HR: 24/1630Z NO VA EXP FCST VA CLD +18HR: 24/2230Z NO VA EXP RMK: VA PSBLY OBSD BY STLT MOVG WNW. VA NOT OBSD BY WEBCAM LKLY DUE TO WX CLD CVR OBSCN. NWP MDLS SUGGEST VA AT FL150 AND FCST VA TO CONT MOVG WNW THRU T+6HRS. ...HOSLEY NXT ADVISORY: WILL BE ISSUED BY 20230824/1100Z